Steam-pipe covering



(No Model.)

0. J. W. SHEARER.

STEAM PIPE COVERING.

No. 456,661. Patented July 28, 1891.

SIZE-L- r: NORRIS PcYins cm. moroinuo, wAsmm'roN, u, c

UNITED STATES PATENT OFFICE.

CHARLES J. SIIEARER, OF C ARTERSBURG, INDIANA.

STEAM-PIPE COVERING.

SPECIFICATION forming part of Letters Patent No. 456,661, dated July 28, 1891.

Application filed February 16, 1891. Serial No. 381,616- (No model.)

jackets or coverings for steam-pipes and will be understood from the following description.

In the drawings, Figure 1 is a perspective view of a section of my device, the outer canwas covering being removed, showing the arrangement of the successive layers with respect to each other. Fig. 2 is a cross-section of my device, showing also the outer covering and the ties ready to be clasped about the pipe. Fig. 3 is a perspective view of a part of one of the completed sections, showing the outside covering and the ends sealed.

In detail my device consists of a plain layer 1 upon which is superimposed a fluted or corru gated layer This is succeeded by another plain layer 1, and then again by a fluted layer 2, and so on throughout the entire series on til the roll is of the proper size. The plain layers and the fluted layers may be cemented together in the first instance or may be rolled up separately and then cemented, whichever is the most convenient, it being understood that each layer throughout the entire series is made of asbestos or other non-combustible material, and one layer alternates with the other, so that longitudinal air-channels will be formed the entire length, and when the ends are closed by the pieces l, which are also asbestus or similar material, these channels become dead-air spaces and prevent the accumulation or radiation of heat. After the material has been rolled up so as to form a continuous cylindrical pipe itis sawed or cut through half'way and the edges separated, as shown at 6 in Fig. 2, so as to allow its being clasped about a pipe without disconnecting the latter, and the edges of this cut are covcred over with asbestns, and then ties 5, composed of metal, are placed about the roll at suitable distances along the entire section, and over these wires on the outside is placed an additional cover of canvas 3, and the ends are sealed or covered with asbestos 4, as shown in Fig. \Vhen, therefore, a stop is made, the section of covering is completely closed at the ends, and no further treatment is required. When it has been placed upon the pipe, the ties are drawn together and twisted, so as to close up the opening 6, and the end of the canvas cover 3 is then pasted o1- cemented down over the ties and over the joint, completely closing and protecting the same.

I am aware that pipe coverings or jackets made of layers of paper or some other nonconducting material having perforations or short grooves have been heretofore used, and I do notclaim the same as myinvention; but I am not aware that any pipe-covering made of material which is at once non-combustible and non-conducting and of alternating plain and fluted layers, whereby longitudinal airspaces are formed throughout the entire length of the section, the section also sealed at the ends and covered on the outside, has ever been known or used.

hat I claim as my invention, and desire to secure by Letters Patent, is the following:

A detachable pipe-covering section composed of alternate layers of corrugated and plain non-combustible material, whereby longitudinal air-spaces are formed throughout the entire length of the section, the ends closed by asbestus or similar material and having a canvas cover, with means, such as Wires, beneath such cover for closing thejoint when the section has been placed upon the 1 pipe, all combined substantially as shown and described.

In witness whereof I have hereunto set my hand this 13th day of February, 1891.

CHARLES J. \V. SHEARER. Witnesses:

O. l. Jncons, E. B. GRlFFITl-I. 

